205816660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{2039}}^1$

素因数の和:2165

約数の個数: 72

約数和(自身を含む): 507911040

約数和(自身を除く): 302094380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 196, 206, 245, 412, 490, 515, 721, 980, 1030, 1442, 2039, 2060, 2884, 3605, 4078, 5047, 7210, 8156, 10094, 10195, 14273, 14420, 20188, 20390, 25235, 28546, 40780, 50470, 57092, 71365, 99911, 100940, 142730, 199822, 210017, 285460, 399644, 420034, 499555, 840068, 999110, 1050085, 1470119, 1998220, 2100170, 2940238, 4200340, 5880476, 7350595, 10290833, 14701190, 20581666, 29402380, 41163332, 51454165, 102908330, 205816660]

約数ペア:

[(1, 205816660), (2, 102908330), (4, 51454165), (5, 41163332), (7, 29402380), (10, 20581666), (14, 14701190), (20, 10290833), (28, 7350595), (35, 5880476), (49, 4200340), (70, 2940238), (98, 2100170), (103, 1998220), (140, 1470119), (196, 1050085), (206, 999110), (245, 840068), (412, 499555), (490, 420034), (515, 399644), (721, 285460), (980, 210017), (1030, 199822), (1442, 142730), (2039, 100940), (2060, 99911), (2884, 71365), (3605, 57092), (4078, 50470), (5047, 40780), (7210, 28546), (8156, 25235), (10094, 20390), (10195, 20188), (14273, 14420)]